以技术创新铸就突尼斯梅莱格大坝的“中国方案”

Core Insights - The article highlights the construction of the Meleg River Valley dam in Tunisia, showcasing China's innovative hard-fill dam technology and its commitment to environmentally friendly infrastructure development in Africa [1][9]. Group 1: Project Overview - The Meleg dam, utilizing hard-fill (BCR) technology, is a significant engineering project with a normal water storage capacity of 190 million cubic meters and a maximum capacity of 305 million cubic meters [9]. - The project aims to regulate drought and flood conditions in northwestern Tunisia, ensuring reliable irrigation and domestic water supply for local agriculture and residents [9]. Group 2: Technical Innovations - The project team faced challenges due to over 300 European and American standards, necessitating a specialized research group to adapt and integrate these standards with Chinese construction practices [1][5]. - A total of 187 tests were conducted to understand the key characteristics of the hard-fill material, which has low cement usage and requires compaction for formation, laying the groundwork for subsequent technical innovations [3][5]. Group 3: Environmental and Social Responsibility - The construction process emphasized minimal ecological disruption, with strategies such as careful planning of temporary land use and the use of static crushing techniques to reduce dust and noise pollution [6][7]. - The project also focused on local employment, hiring over 1,200 local workers and training hundreds in infrastructure skills, thereby contributing to community development and improving local livelihoods [7][9]. Group 4: International Collaboration - The Meleg dam serves as a model for international cooperation under the Belt and Road Initiative, demonstrating China's commitment to sharing technology and fostering partnerships with Tunisia [9]. - The project exemplifies the dialogue between Chinese technology and international standards, marking a milestone for hard-fill dam technology on a global scale [9].